body {
    margin: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

.wrapper {
    width: 500px;
    height: 550px;
    margin: 50px auto;
}

.clearfix::after {
    content: "";
    display: block;
    clear: both;
}

.userUI {
    height: 50px;
}

.grade.flt {
    margin: 0 auto;
    width: 100px;
    text-align: left;
    font-size: 20px;
    font-weight: bolder;
    font-family: '微软雅黑';
}

.gradeNum {
    display: inline-block;
    width: 45px;
    text-align: right;
    color: #ff2400;
}

.wrap {
    position: relative;
    width: 500px;
    height: 500px;
    overflow: hidden;
    outline: 1px solid #000;
    background: #000 url(../media/background.jpg) 0 0/120px 120px;
}

.load{
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: url(../media/loadBackground.gif) 0 0/500px 500px no-repeat;
    text-align: center;
    color: #fff;
    font-size: 12px;
}

.title{
    margin: 30px 0 227px;
    font-size: 50px;
    font-weight: bolder;
    color: #424242;
}

.start{
    display: block;
    margin: 22px auto;
    width: 100px;
    height: 30px;
    line-height: 30px;
    border-radius: 5px;
    background: #f00;
    color: #fff;
    font-weight: bolder;
}

.round {
    display: block;
    position: absolute;
    width: 20px;
    height: 20px;
    box-sizing: border-box;
    border-left: 1px solid transparent;
    border-top: 1px solid transparent;
    background: url(../media/body.png) 1px 1px/18px 18px no-repeat;
    z-index: 2;
}

.round.head {
    background: url(../media/head.png) 1px 1px/18px 18px no-repeat;
}

.food {
    position: absolute;
    width: 20px;
    height: 20px;
    box-sizing: border-box;
    border: 1px dashed #f00;
    background: url(../media/food.png) 0 0/18px 18px no-repeat;
    z-index: 1;
}

.food::before {
    content: "";
    position: absolute;
    right: 8px;
    bottom: 9px;
    width: 500px;
    height: 500px;
    border: 1px dashed #f00;
    z-index: 1;
}

.food::after {
    content: "";
    position: absolute;
    left: 9px;
    top: 8px;
    width: 500px;
    height: 500px;
    border: 1px dashed #f00;
    z-index: 1;
}